Graphenea

Monolayer Graphene on Cu (4 Inches)

This product consist on a single-layer graphene grown on copper foil substrate.

Graphene Film

· Growth method: CVD synthesis

· Appearance (color): Transparent

· Transparency: > 97%

· Appearance (form): Film

· Coverage: > 95%

· Number of graphene layers: 1

· Thickness (theoretical): 0.345 nm

· FET Electron Mobility on Al2O3: 2000 cm2/Vs

· Hall Electron Mobility on SiO2/Si: 2000-3500 cm2/V

· Sheet Resistance on SiO2/Si: 450±40 Ohms/sq (1cm x1cm)

· Grain size: Up to 10 μm

Substrate Cu Foil

· Thickness: 18 μm

· Roughness: around 80 nm

· Pretreated for easier bottom layer removal: Monolayer graphene on the back side of Copper is partially removed, but not completely, so an additional treatment like RIE is needed before transfer to eliminate the bottom layer totally

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Frequently Asked Questions

A: No. Graphene bottom layer has to be removed before transferring onto the desired substrate. Different methods can be used such as oxygen plasma, Reactive Ion Etching (RIE) or chemical reactants such as diluted HNO3.

A: We recommend to keep the samples in vacuum or inert atmosphere in order to avoid copper oxidation.